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1. (WO2018166889) TOOL BODY AND A METHOD FOR THE PRODUCTION THEREOF

Pub. No.:    WO/2018/166889    International Application No.:    PCT/EP2018/055768
Publication Date: Fri Sep 21 01:59:59 CEST 2018 International Filing Date: Fri Mar 09 00:59:59 CET 2018
IPC: B23B 51/06
B23C 5/28
B23P 15/32
B23P 15/34
B22F 3/20
Applicants: CERATIZIT AUSTRIA GESELLSCHAFT M.B.H.
GÜNTHER WIRTH HARTMETALLWERKZEUGE GMBH & CO. KG
Inventors: BARBIST, Roland
BIERBAUMER, Robert
AMBOS, Alexander
MAYR, Johannes
RAPP, Oliver
Title: TOOL BODY AND A METHOD FOR THE PRODUCTION THEREOF
Abstract:
The invention relates to a tool body (1) for a rotating tool, in particular a drill or end milling cutter, comprising along the longitudinal axis (L) thereof: an outlet section (2), which has, at least in sections, spiral-shaped internal cooling channels (3); a supply section (4) having at least one central recess (5) extending substantially straight and parallel to the longitudinal axis (L); a joining zone (6), by way of which the outlet section (2) and the supply section (4) are connected to one another, wherein a transfer area (7) is formed, in which by way of at least one transfer cavity (81), the central recess (5) is connected to the cooling channels (3) of the outlet section (2) in a communicating manner. The invention is characterized in that in the joining zone (6), the outlet section (2) and the supply section (4) are connected to one another by way of a sinter joining, wherein the joining zone (6) extends along a cross-section of the tool body (1) and transversely to the longitudinal axis (L). The invention further relates to a method for producing a tool body.